Tree Huggers

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A community to discuss, appreciate, and advocate for trees and forests. Please follow the SLRPNK instance rules, found here.

founded 1 year ago
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Australia just overturned 20 years of case law to allow environmental groups to take corporations harming the environment to court.

Please crosspost to other communities which might be fitting.

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Harvesting in Bulga state forest, inland from Port Macquarie, is just 400km from global nature-positive summit the government is hosting

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  • The EU parliament and council is considering a 12-month delay to its deforestation-free products regulation, which will require exporters to prove that beef, soy, rubber and other harmful commodities aren’t sourced to deforested land.

  • The law was supposed to go into effect January 1, 2025, but faced mounting pressure from exporting countries and the industrial agricultural sector.

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For the Maasai, Nyekweri forest has such a high ecological and socio-cultural value. But new conservancies aren’t working as best they could.

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A really innovative study that went beyond statistical association and actually planted trees in low-tree neighborhoods and measured the impacts.

After the plantings, the research team reassessed residents' health. They found that those living in the greened area had 13-20% lower levels of a biomarker of general inflammation, a measure called high-sensitivity C-reactive protein (hsCRP) than those living in the areas that did not receive any new trees or shrubs. Higher levels of hsCRP are strongly associated with a risk of cardiovascular disease and are an even stronger indicator of heart attack than cholesterol levels. Higher CRP levels also indicate a higher risk of diabetes and certain cancers.

A reduction of hsCRP by this percentage corresponds to nearly 10-15% reduction in the risk of heart attacks, cancer or dying from any disease.

Although several previous studies have found an association between living in areas of high surrounding greenness and health, this is the first study to show that a deliberate increase in greenness in the neighborhood can improve health.

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Nearly 40% of the Amazon's vital climate regions are unprotected, raising concerns about deforestation and the urgent need for preservation.

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In case of paywall: https://archive.ph/jgkDt

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A complaint lodged with the government alleges that Argentine provincial officials and businessmen are profiting from clearing the native forest.

In northern Argentina, lush, green spaces of forest give way to wide, open clearings. In aerial photos, the contrast couldn’t be starker: treetops with varying tones of green, and next to them, brownish empty land. Such is the reality for some parts of the province of Chaco, home to a part of the Gran Chaco, the second-largest forest in South America, after the Amazon. This vast dry forest has one of the highest deforestation rates in the world, losing more than 130 square miles every month.

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It’s long been thought that soil is the only effective terrestrial methane sink, as certain microorganisms use methane as a food source, but similar creatures live under a tree’s layer of bark, meaning that not only do our woody cousins withdraw CO2 from the atmosphere and store it in their roots, but also remove methane as well, about as effectively or perhaps more so than soil.

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Years ago, I took an online course on mountains, and one fact that stuck with me from it was about how people in the USA accidentally polluted the water in New York City by cutting down trees.

It was the 1800s, and the trees in the Catskill Mountains were cut down to accommodate growing populations, and as a result, the water quality for New Yorkers deteriorated rapidly. Yes, the agriculture pollution and sewage did play a part, but the trees were decided to be such a big problem, that they decided something had to be done.

So, they purchased land, and planted 18000 trees to restore the natural ecosystem.

How does this water-cleaning work? With watersheds.

“Watershed: an area of high ground from which water flows down to a river” | Cambridge Dictionary

Imagine it is raining in a forest. Droplets hit the ground, and —thanks to the vegetation which slows runoff — it is absorbed into the soil like a sponge. As the water moves through the soil, microbes are actively removing harmful pollutants, silt is filtered, and plants removing fertilizers.

Some of the water will end up in our lakes and streams, but will be much cleaner than when it started.

"The ability of forests to aid in the filtration of water doesn’t only provide benefits to our health and the health of an ecosystem, but also to our pocketbooks. Forest cover has been directly linked to drinking water treatment costs, so the more forest in a source water watershed, the lower the cost to treat that water. Forests provide these benefits by filtering sediments and other pollutants from the water in the soil before it reaches a water source, such as a stream, lake or river." | American Forests

Since this intake and outtake of water is gradual, removal of these forests can even to lead to a higher chance of both droughts and floods.

More Info:

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Have you heard of the beautiful living root bridges in Meghalaya, India? Their construction is a lesson in patience as the roots are gradually encouraged to grow in the supportive shape. They need regular care, but grow stronger with age.

“Once a bamboo structure has been stretched across the river, the roots of the tree, usually the rubber tree (Ficus elastica), are teased and manipulated to become entwined with the bamboo until it becomes a strong mesh. The roots are allowed to grow gradually and strengthen over time. In the initial stages, only about 15-20 people can cross the bridge in a day. Much later, it can be as many as 50 or more, although it can take up to two decades for a living roots bridge to be finished.” | The Guardian

Once done, the bridges can have a lifespan of several hundred years; far outliving the original creators of them.

It is unknown when this tradition started, but they were written about in 1844, so it would be far earlier than that.

I just thought people on here might find this tradition as fascinating as I do.

More Info:

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cross-posted from: https://group.lt/post/2266851

Highlights

European beech trees more than 1,500 kilometers apart all drop their fruit at the same time in a grand synchronization event now linked to the summer solstice.

From England to Sweden to Italy — across multiple seas, time zones and climates — somehow these trees “know” when to reproduce. But how?

Their analysis of over 60 years’ worth of seeding data suggests that European beech trees time their masting to the summer solstice and peak daylight.

The discovery of the genetic mechanism that governs this solstice-monitoring behavior could bring researchers closer to understanding many other mysteries of tree physiology.

So it’s easy to see why masting trees synchronize their seed production. Understanding how they do it, however, is more complicated. Plants usually synchronize their reproduction by timing it to the same weather signals.

Then the team stumbled across a clue by accident. One summer evening, Bogdziewicz was sitting on his balcony reading a study which found that the timing of leaf senescence — the natural aging process leaves go through each autumn — depends on when the local weather warms relative to the summer solstice. Inspired by this finding, he sent the paper to his research group and called a brainstorming session.

It’s the first time that researchers have identified day length as a cue for masting. While Koenig cautioned that the result is only correlational, he added that “there’s very little out there speculating on how the trees are doing what they’re doing.”

If the solstice is shown to activate a genetic mechanism, it would be a major breakthrough for the field. Currently, there’s little data to explain how trees behave as they do. No one even knows whether trees naturally grow old and die, Vacchiano said. Ecologists struggle just to study trees: From branches to root systems, the parts of a tree say very little about the physiology of the tree as a whole. What experts do know is that discovering how trees sense their environment will help them answer the questions that have been stumping them for decades.

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